Books listed by ISBN
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McGraw-Hill
> Ethel G. Armstrong
Ethel G. Armstrong
title
ISBN-13
(ISBN-10)
year of publication
Introduction to Multiplication
978-O-O7-OO2285-O
(O-O7-OO2285-2)
1964
e.a.
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E. G. ??
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G. A.
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G. Armstrong
Ethel G Hofman